duplicitous vs duplicity

duplicitous is not a noun while duplicity is a noun.

Word	Noun	Adjective	Verb	Adverb
duplicitous	No	Yes	No	No
duplicity	Yes	No	No	No

duplicitous (noun)	duplicity (noun)
	acting in bad faith; deception by pretending to entertain one set of intentions while acting under the influence of another
	a fraudulent or duplicitous representation

duplicitous (adjective)	duplicity (adjective)
marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another